| Year | Percent of total |
|---|---|
|
1993 |
48.3 |
|
1994 |
48.0 |
|
1995 |
48.5 |
|
1996 |
49.1 |
|
1997 |
49.5 |
|
1998 |
50.0 |
|
1999 |
51.0 |
|
2000 |
51.0 |
|
2001 |
51.4 |
|
2002 |
51.4 |
|
2003 |
51.4 |
|
2004 |
51.3 |
|
2005 |
51.6 |
|
2006 |
51.5 |
|
2007 |
51.8 |
|
2008 |
51.9 |
|
2009 |
52.1 |
|
2010 |
52.5 |
|
2011 |
52.0 |
|
2012 |
51.6 |
|
2013 |
51.7 |
|
2014 |
51.9 |
|
2015 |
52.4 |
|
2016 |
53.0 |
|
2017 |
52.8 |
|
2018 |
53.0 |
|
2019 |
53.1 |
|
2020 |
52.5 |
|
Source: U.S. Bureau of Labor Statistics. |
|